'''Platinum''' is an extremely unreactive (it is found in its [[Native Elements|native]] state) chemical [[element]]. It is a catalyst for several reactions, and is used in catalytic converters and in the synthesis of [[nitric acid]].
+
'''Platinum''' is an extremely unreactive (it is found in its [[Native Elements|native]] state) chemical [[element]]. It is a catalyst for several reactions (such as the hydrogen half-cell), and is used in catalytic converters and in the synthesis of [[nitric acid]].